diff --git a/src/qt/forms/signverifymessagedialog.ui b/src/qt/forms/signverifymessagedialog.ui
index f42d19093b8be..b72360b586a9c 100644
--- a/src/qt/forms/signverifymessagedialog.ui
+++ b/src/qt/forms/signverifymessagedialog.ui
@@ -30,7 +30,7 @@
        <item>
         <widget class="QLabel" name="infoLabel_SM">
          <property name="text">
-          <string>You can sign messages/agreements with your addresses to prove you can receive bitcoins sent to them. Be careful not to sign anything vague or random, as phishing attacks may try to trick you into signing your identity over to them. Only sign fully-detailed statements you agree to.</string>
+          <string>You can sign messages/agreements with your legacy (P2PKH) addresses to prove you can receive bitcoins sent to them. Be careful not to sign anything vague or random, as phishing attacks may try to trick you into signing your identity over to them. Only sign fully-detailed statements you agree to.</string>
          </property>
          <property name="textFormat">
           <enum>Qt::PlainText</enum>
diff --git a/src/qt/signverifymessagedialog.cpp b/src/qt/signverifymessagedialog.cpp
index 0e725acb33e9d..4392d76328e7c 100644
--- a/src/qt/signverifymessagedialog.cpp
+++ b/src/qt/signverifymessagedialog.cpp
@@ -10,6 +10,7 @@
 #include <qt/platformstyle.h>
 #include <qt/walletmodel.h>
 
+#include <config/bitcoin-config.h> // IWYU pragma: keep
 #include <key_io.h>
 #include <util/message.h> // For MessageSign(), MessageVerify()
 #include <wallet/wallet.h>
@@ -123,7 +124,7 @@ void SignVerifyMessageDialog::on_signMessageButton_SM_clicked()
     if (!pkhash) {
         ui->addressIn_SM->setValid(false);
         ui->statusLabel_SM->setStyleSheet("QLabel { color: red; }");
-        ui->statusLabel_SM->setText(tr("The entered address does not refer to a key.") + QString(" ") + tr("Please check the address and try again."));
+        ui->statusLabel_SM->setText(tr("The entered address does not refer to a legacy (P2PKH) key. Message signing for SegWit and other non-P2PKH address types is not supported in this version of %1. Please check the address and try again.").arg(PACKAGE_NAME));
         return;
     }
 
@@ -221,10 +222,7 @@ void SignVerifyMessageDialog::on_verifyMessageButton_VM_clicked()
         return;
     case MessageVerificationResult::ERR_ADDRESS_NO_KEY:
         ui->addressIn_VM->setValid(false);
-        ui->statusLabel_VM->setText(
-            tr("The entered address does not refer to a key.") + QString(" ") +
-            tr("Please check the address and try again.")
-        );
+        ui->statusLabel_VM->setText(tr("The entered address does not refer to a legacy (P2PKH) key. Message signing for SegWit and other non-P2PKH address types is not supported in this version of %1. Please check the address and try again.").arg(PACKAGE_NAME));
         return;
     case MessageVerificationResult::ERR_MALFORMED_SIGNATURE:
         ui->signatureIn_VM->setValid(false);